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How to pass the values from one activity to previous activity
...nt resultIntent = new Intent();
resultIntent.putExtra(PUBLIC_STATIC_STRING_IDENTIFIER, enteredTextValue);
setResult(Activity.RESULT_OK, resultIntent);
finish();
The final step is in the calling Activity: Override onActivityResult to listen for callbacks from the text entry Activity. Get the extra ...
Django: “projects” vs “apps”
...complex "product" I'm getting ready to build using Django. I'm going to avoid using the terms "project" and "application" in this context, because I'm not clear on their specific meaning in Django.
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Can someone explain __all__ in Python?
...list of public objects of that module, as interpreted by import *. It overrides the default of hiding everything that begins with an underscore.
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What is the 'dynamic' type in C# 4.0 used for?
.../ works as expected
cust.MissingMethod(); // No method found!
Notice we did not need to cast nor declare cust as type Customer. Because we declared it dynamic, the runtime takes over and then searches and sets the FirstName property for us. Now, of course, when you are using a dynamic variable, yo...
What is the meaning of “non temporal” memory accesses in x86
...f the writes ineffective.
For this and similar situations, processors provide support for non-temporal write operations. Non-temporal in this context means the data will not be reused soon, so there is no reason to cache it. These non-temporal write operations do not read a cache line and then modi...
Proper SCSS Asset Structure in Rails
...clude this sheet somewhere in your css imports, it will then not only override the browser default styles, but also any styles defined in all css files that were loaded before it. This goes the same for variables and mixins.
After seeing a presentation by Roy Tomeij at Euruko2012 I decided for the ...
Why and How to avoid Event Handler memory leaks?
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A way to get around this from the publisher's side is to set the event to null once you're sure that you won't fire it any more. This will implicitly remove all of the subscribers, and can be useful when certain events are only fired during certain stages of the object's ...
Python: fastest way to create a list of n lists
...ion and is about 15 % faster on my machine.
Edit: Using NumPy, you can avoid the Python loop using
d = numpy.empty((n, 0)).tolist()
but this is actually 2.5 times slower than the list comprehension.
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Why do I have to access template base class members through the this pointer?
...se
int A;
#endif
static const int x = 2;
template <typename T> void foo() { A *x = 0; }
if A is a type, that declares a pointer (with no effect other than to shadow the global x). If A is an object, that's multiplication (and barring some operator overloading it's illegal, assigning to a...
What does `someObject.new` do in Java?
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It's the way to instantiate a non-static inner class from outside the containing class body, as described in the Oracle docs.
Every inner class instance is associated with an instance of its containing class. When you new an inner class from within its containing class it uses the thi...